Improvement in devices for attaching hubs to axles



0. F. SHEPARD. Devices for Attaching Hubs to Axles. N0. 140,389, Patenledlulyl,l873.

illlllllllllil! UNITED STATES PATENT OFFICE.

OSCAR F. SHEPARD, OF CINCINNATI, OHIO.

IMPROVEMENT IN DEVICES FOR ATTACHING HUBS TO AXLES.

Specification forming part of Letters Patent No. 140,389, dated July 1, 1873 application filed September 25, 1872. I

To all whom it may concern: I

Be it known that I, OSCAR F. SHEPARD, of Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain new and useful Improvement in Axles and WVheel-Hubs, of which the following is a specification:

My invention relates to-devices for securing hubs of wheels upon the axles of vehicles; and consists of a detachable collar screwed upon the axle against a fixed collar thereon, which, in conjunction with a cap secured upon a band encircling the inner end of the hub, holds the latter in proper position upon the journal of the axle.

rig-are l is a vertical axial section of an axle and hub embodying my invention. Fig. 2 is a perspective view of an axle with the hub detached. Fig. 3 is a perspective view of the hub detached. Fig. 4 is a perspective view of the thimble. Fig. 5 is a perspective view, showing the collar detached with its modifications.

A is the axle of a buggywvagon, having formed upon it a screw-thread, b, to receive the screw-threaded collar 0. D is the hub of a wheel composed of two parts, D E, the part D being the hub proper, embracing the axle, and the partElocking behind the collarc. The parts may be screwed or otherwise detachably connected.

The collar 0 being adjusted to its place and secured either by the set-screw a, key a, or an equivalent device, the hub D is placed upon the spindle G and, by means of the thimble E,

screw-threaded on its interior and meshing into the screw-thread e on the inner end of the hub D, it is drawn firmly to its bearings. A countersink, f, for giving a hold for a spanner, enables this connection to be made tight. It may be further secured by the use of a setscrew or its equivalent, if desired.

For purposes of repair the wheel maybe removed by unscrewing the thimble, and, after removing the screw a or key a, the collar 0 can also be detached,which will leave the thimble E free to be removed from the axle.

In previous inventions of a similar character the collar has been shrunk upon the spindle of the axle in a groove turned to receive it, thereby perceptibly weakening the metal at that point, or forged upon the same and remaining immovable, rendered it necessary to cut apart and reweld the axle in order to remove the thimble E when it was in need of repair; but by the use of the screw-threaded collar 0 secured by the setscrew a, key a, or

their equivalents, or by forming the collar in two parts, 9 9, so as to act as lock-n uts to each other, the easy removal of both collar and thimble is enabled, and the weakening of the metal by turning a groove into which to shrink the collar is avoided.

Corresponding recesses 2' i may be made in the collar 0 and spindle O, to enable the use of the key a, if preferredto the set-screw or other devices. The thimble or nut may be made to screw inside the cylinder 0, if desired, or may be connected with the part D in any other preferred way.

I claim- The combination of the axle A B 0 having a screw-thread at b, detachable collar 0, hub D having the band 0, and cap E, substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand.

O. F. SHEPARD.

Witnesses:

H. G. WEBBER, J. L. WARTMANN. 

